<template>
  <div>
    <div class="search">
      <input type="text" v-model="keyword" class="search-input" placeholder="输入城市名或拼音">
    </div>
    <div
      class="search-content"
      ref="search"
      v-show="keyword"
    >
      <ul>
        <li class="search-item"
            v-for="item of list"
            :key="item.id"
            @click="handleCityClick(item.name)">
          {{item.name}}
        </li>
        <li class="search-item border-bottom" v-show="hasNoData">
          没有找到匹配数据
        </li>
      </ul>
    </div>
  </div>

</template>

<script>
  import Bscroll from 'better-scroll'
  import {mapMutations} from "vuex";
  export default {
    name: "CitySearch",
    props: {
      cities: Object
    },
    data() {
      return {
        keyword: '',
        list: [],
        timer: null
      }
    },
    computed:{
      hasNoData(){
        return !this.list.length
      }
    },
    watch: {
      keyword() {
        if (this.timer) {
          clearTimeout(this.timer)
        }
        if (!this.keyword) {
          this.list = []
          return
        }
        this.timer = setTimeout(() => {
          const result = []
          for (let i in this.cities) {
            this.cities[i].forEach((value) => {
              if (value.spell.indexOf(this.keyword) > -1 || value.name.indexOf(this.keyword) > -1) {
                result.push(value)
              }
            })
          }
          this.list = result
        }, 100)
      }
    },
    methods:{
      handleCityClick(city) {
        // this.$store.commit('changCity', city)
        this.changCity(city)
        this.$router.push('/')
      },
      ...mapMutations(['changCity'])
    },
    mounted () {
      this.scroll = new Bscroll(this.$refs.search)
    }
  }
</script>

<style lang="stylus" scoped>
  @import "~style/varibles.styl"
  .search
    height: .72rem
    padding: 0 .1rem
    background: $bgColor

  .search-input
    box-sizing: border-box
    width: 100%
    height: .62rem
    padding: 0 .1rem
    line-height: .62rem
    text-align: center
    border-radius: .06rem
    color: #666

  .search-content
    z-index: 1
    overflow: hidden
    position: absolute
    top: 1.58rem
    left: 0
    right: 0
    bottom: 0
    background: #eee

  .search-item
    line-height: .62rem
    padding-left: .2rem
    background: #fff
    color: #666

</style>
